Except that you solve it the wrong way. Don't do that. Or use the "no strict refs" pragma only if there is an excellent reason to do it, i.e. probably never until you reach the level of Perl super-guru doing pure black magics.

Here, all you need to do is to declare your variable with the 'my' function:

I would just add that you should not open a file without testing if it worked. So this would most probably be better:

Using the same variable name for the file handle and part of the file name is confusing.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ